Just got a 6" superlift and it comes with a bracket to lower the transmission to prevent vibrations. I have a mega cab and am hoping I can get away without installing this bracket and perhaps lowering the carrier bearing instead. Any input?

 

I'm not too familiar with the mega's and the carrier bearing, but I would think you would have to lower the bearing even with the trans. mount. Because with the two piece shaft, just lowering the trans. doesn't help ease the angle at all on the rear shaft. Hopefully someone with a megacab and the lift will chime in on this.

Darren

 

did you install the transmission drop on your lift? The instructions do not address lowering the bearing nor are any spacers included. How much did you lower your carrier bearing?

 

Mine is just a quad cab short box so I don't have a two-piece shaft. I did install the trans. drop bracket though. But, I'm thinking you would have to lower the carrier bearing some how, I just don't see how the trans. bracket will do any good.

 

I just took a look at Superlift's website and there is a carrier bearing relocator #4667 for two-piece shafts. That number is for 2006 model year and would probably also fit 2007.

 

I have found that with Any long bed quad cab or Mega cab, that when you do a lift you should doa 1.5" to 2" drop on the carrier bearing. It helps a lot with vibrations at take off.

 

I believe the trans drop bracket is for taking some of the angle out of the front driveshaft, not the rear.

 

that drop bracket is for the carrier bearing. I have a 6" superlift myself and that is where the drop mounts.

 

Mounts where? The carrier bearing? There is a carrier drop and a trans drop.

 

Yes, it mount under the carrier bearing. You should have a metal block that's been zinc coated. It's about 6" long and about 2" high. That piece goes right under the carrier bearing to align the drive shaft.

There is no trans relocation bracket

 

I have one in my garage.(trans drop) I have a 1 piece rear drive shaft, the long beds got the 2 piece d-shaft with the carrier bearing. Do all of the 2007's have 2 piece rear driveshafts? I'm guessing the mega cabs are built on the long bed frames.

 

The transmission drop bracket is for the front drive line, on a Mega cab you will have to lower the carrier bearing about 2 to 2 1/2"s for take off vibration.

 

Didnt know there was a bracket to drop the transmission. I know there is a indexing ring to clock the Tcase down, and also the spacers for the carrier bearing.
I dont see how spacing the transmission down would help the front driveline angle, just because only the back of the transmission will come down, unless they had drop engine mounts. Dropping the back of the transmission by itself would put the front DS in even more of a bind...

 

A carrier-bearing spacer will help eliminate take-off vibration in the U-joints from out-of-tolerance driveline angles. A 1" spacer on the 4WD made the difference on the '05

 

In theroy...the carrier drop should be close to 1/2 of the actual rear lift height.